🚀 go-pugleaf

I have a document that I want to separate into parts, for example Part 1 with its chapters, Part 2 with its chapters, etc. However, I want the chapters to be continuously numbered across the parts. (Not starting with chapter 1 again.) I got the chapter numbering to work in the book's body, but I'm stuck at the TOC. In the TOC, Part entries are treated as regular chapters, so the next chapter is off. For example, it comes out as follows: 

Chapter 1 .............1-1 
Part 1 
Chapter 3 .............3-1 
Chapter 4 .............4-1 
Part 2 
Chapter 6 ............ 6-1 

I want it to be: 
Chapter 1 .............1-1 
Part 1 
Chapter 2 .............2-1 
Chapter 3 .............3-1 
Part 2 
Chapter 4 ............ 4-1 

How do I do this without manually forcing the Chapter number in the chapter after a Part entry? 

Emelita